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CSS Box Shadow Generator — Multi-Layer, Inset, Live Preview

Visual CSS box-shadow builder — multi-layer, inset, color/blur with live preview.

  • Runs locally
  • Category Color & Design
  • Best for Moving from a visual idea to reusable color values.
Layer 1
Offset X 0
Offset Y 8
Blur 24
Spread -4
Color
box-shadow: 0px 8px 24px -4px rgba(15,17,28,0.35);

What this tool does

A visual builder for production CSS `box-shadow` values — stack multiple shadow layers, mix outer drops with inset highlights, and tune offset, blur, spread, and color (including alpha) on every layer. The live preview is a real DOM box rendered with the same CSS your output panel shows, so the on-screen result is byte-identical to what your component will look like in production. Add as many layers as you need — the compound shadow string is rebuilt on every keystroke, no compile step. Six tasteful presets are included: Material Design elevations 1, 3, and 5; Apple's soft macOS-style depth; a hard "outlined" pop shadow; and a clean inset depression for pressed buttons or inputs. One-click copy gives you a paste-ready `box-shadow:` declaration — drop it into a CSS file, a styled-component, a Tailwind arbitrary value `shadow-[<value>]`, or a React `style={{ boxShadow: '...' }}` prop. 100% client-side: no network requests, no signup, no telemetry on the values you tweak. Perfect for buttons, cards, modals, dropdowns, and any UI where the difference between a 4-pixel and 8-pixel blur is the difference between cheap and considered.

Tool details

Input
Text + Numbers
The page exposes text boxes, numeric controls, file pickers, or structured inputs depending on the tool.
Output
Live result + Copy + Preview
The result area focuses on usable output, with copy, download, or preview actions when supported.
Privacy
Browser-side processing
The main tool logic does not call an external API, so inputs normally stay in the current tab.
Save / share
No account required
Open the page and use it; whether results survive refresh depends on the tool.
Performance budget
Initial JS <= 22 KB
No WASM budget is declared, keeping the tool quick to open on mobile.
Best fit
Color & Design · Designer
Category and role tags drive related tools, internal links, and quick fit checks.

How to use

  1. 1. Input

    Paste or drop your content into the tool panel.

  2. 2. Process

    Click the button. All processing is local in your browser.

  3. 3. Copy / Download

    Copy the result or download to disk in one click.

How CSS Box Shadow Generator fits into your work

Use it while choosing, checking, converting, or documenting colors for real interface work.

Color jobs

  • Moving from a visual idea to reusable color values.
  • Checking contrast and accessibility before a UI ships.
  • Keeping brand, design, and implementation color decisions aligned.

Color checks

  • Verify contrast against the actual background, not just a sample swatch.
  • Check dark and light themes separately when both exist.
  • Copy the final format your design system or codebase expects.

Good next steps

These links move the current task into a more complete workflow.

  1. 1 CSS Gradient Generator Visual CSS gradient builder — linear, radial, conic with multi-stop colors, live preview, copy CSS, PNG export. Open
  2. 2 Color Converter HEX ⇄ RGB ⇄ HSL ⇄ HSV ⇄ CMYK — instant 5-way conversion, live swatch — browser-only Open
  3. 3 CSS Clip-Path Generator Visual CSS clip-path builder — polygon, circle, ellipse, inset with drag handles. Open

Real-world use cases

  • Match a designer's Figma card shadow in your React code

    A designer hands you a Figma card with two stacked drop shadows: a soft ambient one and a tight contact one. Eyeballing it in DevTools never quite matches. Read the X, Y, blur, spread, and color off Figma's Effects panel, punch each layer in here, copy the compound string, and paste it into your styled-component. The on-screen preview is byte-identical, so review passes on the first round instead of three "a bit softer" loops.

  • Replace a 9-slice PNG drop shadow with pure CSS

    An old modal uses a 40KB sliced PNG for its border glow. You want it gone. Stack a wide ambient layer (0 8px 32px rgba(0,0,0,0.12)) under a sharper key layer (0 2px 8px rgba(0,0,0,0.20)), tweak until it reads like the PNG, and ship a single box-shadow line. You drop 40KB, lose an HTTP request, and the shadow now scales with the element instead of stretching the slices.

  • Build a pressed-button state with an inset shadow

    Your button looks flat when clicked. Start from the inset preset, set offset to 0 2px, blur 4px, spread 0, and a dark alpha color, then bind it to :active. Now the button visibly depresses by 2px of inner shadow on press. The tool's live inset preview saves you from guessing whether spread eats into your label, which it does past about 1px on small buttons.

  • Define a reusable elevation scale for a design system

    You need elevation tokens for a component library: rest, hover, and overlay. Generate three values off the Material 1, 3, and 5 presets, copy each, and register them as shadow-rest, shadow-hover, shadow-overlay in your Tailwind theme. Every card, menu, and dialog now pulls from three named tokens instead of 20 hand-typed rgba strings scattered across the codebase.

Common pitfalls

  • Putting all the darkness in one layer. A single 0 10px 20px rgba(0,0,0,0.5) reads cheap; split it into a soft ambient (low alpha, big blur) plus a tight key (higher alpha, small blur) for real depth.

  • Forgetting alpha and using solid colors. box-shadow with

  • Adding huge blur+spread shadows to animated elements. A 0 0 200px 100px glow on a transform-animated card tanks your paint budget; keep blur modest on anything that moves every frame.

Privacy

Everything runs in your browser. The shadow layers, colors, and presets you tweak stay on the page and never hit a server. Note this tool does not write your values into the URL, so a plain copy of the page link will not carry your shadow config to a teammate; copy the box-shadow string itself to share a value.

FAQ

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Made by Toolora · 100% client-side · Updated 2026-06-14